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Finding the Fourth Proportional to 1,296,721.19, 1,945,333.89 and 497,944.01

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Solution

The fourth proportional to 1,296,721.19, 1,945,333.89 and 497,944.01 is: 747,012.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,721.19 : 1,945,333.89 = 497,944.01 : x
  2. Step 2: Convert to fraction form
    1,296,721.19/1,945,333.89 = 497,944.01/x
  3. Step 3: Cross multiply
    1,296,721.19x = 1,945,333.89 × 497,944.01
  4. Step 4: Simplify right side
    1,296,721.19x = 968,667,357,975.50
  5. Step 5: Solve for x
    x = 968,667,357,975.50/1,296,721.19
  6. Step 6: Final answer
    x = 747,012.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.